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Overview
| Comment: | Redesign the string to numeric value caster so that it is more likely to work on unusual floating point hardware. |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
8bb1104c6f02c88eb09ed345890be71d |
| User & Date: | drh 2010-01-21 01:53:08.000 |
Context
|
2010-01-21
| ||
| 23:11 | Fix a segfault that can occur when the LHS of a LIKE operator has an undefined collating sequence. Ticket [1258875e07553]. (check-in: a82e6b4585 user: drh tags: trunk) | |
| 01:53 | Redesign the string to numeric value caster so that it is more likely to work on unusual floating point hardware. (check-in: 8bb1104c6f user: drh tags: trunk) | |
|
2010-01-20
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| 14:25 | Fix a problem with handling OOM errors in fts3. (check-in: f9c54e95ec user: dan tags: trunk) | |
Changes
Changes to src/vdbemem.c.
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464 465 466 467 468 469 470 471 472 |
MemSetTypeFlag(pMem, MEM_Real);
return SQLITE_OK;
}
/*
** Convert pMem so that it has types MEM_Real or MEM_Int or both.
** Invalidate any prior representations.
*/
int sqlite3VdbeMemNumerify(Mem *pMem){
| > > > > | < | < < | | > > > | > | 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 |
MemSetTypeFlag(pMem, MEM_Real);
return SQLITE_OK;
}
/*
** Convert pMem so that it has types MEM_Real or MEM_Int or both.
** Invalidate any prior representations.
**
** Every effort is made to force the conversion, even if the input
** is a string that does not look completely like a number. Convert
** as much of the string as we can and ignore the rest.
*/
int sqlite3VdbeMemNumerify(Mem *pMem){
int rc;
assert( (pMem->flags & (MEM_Int|MEM_Real|MEM_Null))==0 );
assert( (pMem->flags & (MEM_Blob|MEM_Str))!=0 );
assert( pMem->db==0 || sqlite3_mutex_held(pMem->db->mutex) );
rc = sqlite3VdbeChangeEncoding(pMem, SQLITE_UTF8);
if( rc ) return rc;
rc = sqlite3VdbeMemNulTerminate(pMem);
if( rc ) return rc;
if( sqlite3Atoi64(pMem->z, &pMem->u.i) ){
MemSetTypeFlag(pMem, MEM_Int);
}else{
pMem->r = sqlite3VdbeRealValue(pMem);
MemSetTypeFlag(pMem, MEM_Real);
sqlite3VdbeIntegerAffinity(pMem);
}
return SQLITE_OK;
}
/*
** Delete any previous value and set the value stored in *pMem to NULL.
*/
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| ︙ | ︙ |